Daikin EPRA14DAV3, EPRA16DAV3, EPRA18DAV3, EPRA14DAW1, EPRA16DAW1 Installer reference guide

...

Installer reference guide

https://daikintechnicaldatahub.eu

Daikin Altherma 3 H HT F

EPRA14DAV3 EPRA16DAV3 EPRA18DAV3

EPRA14DAW1 EPRA16DAW1 EPRA18DAW1

ETVZ16S18DA6V ETVZ16S23DA6V ETVZ16S18DA9W ETVZ16S23DA9W

Table of contents

1 General safety precautions 6

1.1 About the documentation .............................................................................................................................................. 6

1.1.1 Meaning of warnings and symbols ................................................................................................................ 6

1.2 For the installer............................................................................................................................................................... 7

1.2.1 General ........................................................................................................................................................... 7

1.2.2 Installation site ............................................................................................................................................... 8

1.2.3 Refrigerant — in case of R410A or R32.......................................................................................................... 9

1.2.4 Water .............................................................................................................................................................. 10

1.2.5 Electrical ......................................................................................................................................................... 11

2 About the documentation 13

2.1 About this document ...................................................................................................................................................... 13

2.2 Installer reference guide at a glance .............................................................................................................................. 14

3 About the box 16

3.1 Overview: About the box ................................................................................................................................................ 16

3.2 Outdoor unit ................................................................................................................................................................... 16

3.2.1 To handle the outdoor unit ............................................................................................................................ 16

3.2.2 To unpack the outdoor unit ........................................................................................................................... 18

3.2.3 To remove the accessories from the outdoor unit........................................................................................ 19

3.3 Indoor unit ...................................................................................................................................................................... 20

3.3.1 To unpack the indoor unit .............................................................................................................................. 20

3.3.2 To remove the accessories from the indoor unit .......................................................................................... 20

3.3.3 To handle the indoor unit............................................................................................................................... 20

4 About the units and options 21

4.1 Overview: About the units and options.......................................................................................................................... 21

4.2 Identification ................................................................................................................................................................... 21

4.2.1 Identification label: Outdoor unit .................................................................................................................. 21

4.2.2 Identification label: Indoor unit ..................................................................................................................... 22

4.3 Combining units and options.......................................................................................................................................... 22

4.3.1 Possible combinations of indoor unit and outdoor unit................................................................................ 22

4.3.2 Possible options for the outdoor unit ............................................................................................................ 22

4.3.3 Possible options for the indoor unit............................................................................................................... 23

5 Application guidelines 26

5.1 Overview: Application guidelines ................................................................................................................................... 26

5.2 Setting up the space heating/cooling system ................................................................................................................ 27

5.2.1 Multiple rooms – TwoLWT zones.................................................................................................................. 28

5.3 Setting up the domestic hot water tank......................................................................................................................... 30

5.3.1 System layout – Integrated DHW tank........................................................................................................... 30

5.3.2 Selecting the volume and desired temperature for the DHW tank .............................................................. 30

5.3.3 Setup and configuration – DHW tank ............................................................................................................ 32

5.3.4 DHW pump for instant hot water .................................................................................................................. 32

5.3.5 DHW pump for disinfection ........................................................................................................................... 33

5.4 Setting up the energy metering...................................................................................................................................... 34

5.4.1 Produced heat ................................................................................................................................................ 34

5.4.2 Consumed energy........................................................................................................................................... 34

5.4.3 Normal kWh rate power supply ..................................................................................................................... 35

5.4.4 Preferential kWh rate power supply .............................................................................................................. 36

5.5 Setting up the power consumption control ................................................................................................................... 37

5.5.1 Permanent power limitation .......................................................................................................................... 38

5.5.2 Power limitation activated by digital inputs .................................................................................................. 38

5.5.3 Power limitation process................................................................................................................................ 40

5.5.4 BBR16 power limitation.................................................................................................................................. 40

5.6 Setting up an external temperature sensor ................................................................................................................... 41

Installer reference guide

6 Unit installation 43

6.1 Preparing the installation site......................................................................................................................................... 43

6.1.1 Installation site requirements of the outdoor unit........................................................................................ 43

6.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 46

6.1.3 Installation site requirements of the indoor unit .......................................................................................... 46

6.2 Opening and closing the units ........................................................................................................................................ 47

6.2.1 About opening the units................................................................................................................................. 47

6.2.2 To open the outdoor unit ............................................................................................................................... 48

6.2.3 To remove the transportation stay ................................................................................................................ 48

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

Table of contents

6.2.4 To close the outdoor unit ............................................................................................................................... 48

6.2.5 To open the indoor unit ................................................................................................................................. 49

6.2.6 To lower the switch box on the indoor unit .................................................................................................. 51

6.2.7 To close the indoor unit ................................................................................................................................. 52

6.3 Mounting the outdoor unit............................................................................................................................................. 52

6.3.1 About mounting the outdoor unit ................................................................................................................. 52

6.3.2 Precautions when mounting the outdoor unit .............................................................................................. 52

6.3.3 To provide the installation structure ............................................................................................................. 52

6.3.4 To install the outdoor unit ............................................................................................................................. 53

6.3.5 To provide drainage........................................................................................................................................ 54

6.3.6 To install the discharge grille.......................................................................................................................... 56

6.3.7 To remove the discharge grille, and put the grille in safety position............................................................ 57

6.4 Mounting the indoor unit ............................................................................................................................................... 59

6.4.1 About mounting the indoor unit .................................................................................................................... 59

6.4.2 Precautions when mounting the indoor unit................................................................................................. 59

6.4.3 To install the indoor unit ................................................................................................................................ 59

6.4.4 To connect the drain hose to the drain ......................................................................................................... 60

7 Piping installation 62

7.1 Preparing water piping ................................................................................................................................................... 62

7.1.1 Water circuit requirements............................................................................................................................ 62

7.1.2 Formula to calculate the expansion vessel pre-pressure .............................................................................. 64

7.1.3 To check the water volume and flow rate ..................................................................................................... 64

7.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 67

7.1.5 To check the water volume: Examples .......................................................................................................... 67

7.2 Connecting water piping................................................................................................................................................. 68

7.2.1 About connecting the water piping ............................................................................................................... 68

7.2.2 Precautions when connecting the water piping ............................................................................................ 68

7.2.3 To connect the water piping .......................................................................................................................... 68

7.2.4 To connect the recirculation piping ............................................................................................................... 71

7.2.5 To fill the water circuit ................................................................................................................................... 72

7.2.6 To protect the water circuit against freezing ................................................................................................ 72

7.2.7 To fill the domestic hot water tank ................................................................................................................ 75

7.2.8 To insulate the water piping .......................................................................................................................... 75

8 Electrical installation 77

8.1 About connecting the electrical wiring .......................................................................................................................... 77

8.1.1 Precautions when connecting the electrical wiring....................................................................................... 77

8.1.2 Guidelines when connecting the electrical wiring......................................................................................... 78

8.1.3 About electrical compliance........................................................................................................................... 79

8.1.4 About preferential kWh rate power supply ................................................................................................... 79

8.1.5 Overview of electrical connections except external actuators ..................................................................... 80

8.2 Connections to the outdoor unit.................................................................................................................................... 81

8.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 81

8.2.2 To reposition the air thermistor on the outdoor unit ................................................................................... 87

8.3 Connections to the indoor unit ...................................................................................................................................... 88

8.3.1 To connect the main power supply................................................................................................................ 91

8.3.2 To connect the backup heater power supply ................................................................................................ 93

8.3.3 To connect the shut-off valve ........................................................................................................................ 95

8.3.4 To connect the electricity meters .................................................................................................................. 96

8.3.5 To connect the domestic hot water pump .................................................................................................... 97

8.3.6 To connect the alarm output ......................................................................................................................... 98

8.3.7 To connect the space cooling/heating ON/OFF output................................................................................. 99

8.3.8 To connect the changeover to external heat source..................................................................................... 100

8.3.9 To connect the power consumption digital inputs........................................................................................ 101

8.3.10 To connect the safety thermostat (normally closed contact)....................................................................... 102

8.4 After connecting the electrical wiring to the indoor unit .............................................................................................. 104

9 Configuration 106

9.1 Overview: Configuration................................................................................................................................................. 106

9.1.1 To access the most used commands ............................................................................................................. 107

9.2 Configuration wizard....................................................................................................................................................... 109

9.3 Possible screens .............................................................................................................................................................. 110

9.3.1 Possible screens: Overview ............................................................................................................................ 110

9.3.2 Home screen................................................................................................................................................... 111

9.3.3 Main menu screen.......................................................................................................................................... 114

9.3.4 Menu screen ................................................................................................................................................... 115

9.3.5 Setpoint screen............................................................................................................................................... 115

9.3.6 Detailed screen with values ........................................................................................................................... 116

9.3.7 Schedule screen: Example.............................................................................................................................. 116

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

Installer reference guide

Table of contents

9.4 Weather-dependent curve ............................................................................................................................................. 121

9.4.1 What is a weather-dependent curve? ........................................................................................................... 121

9.4.2 2-points curve ................................................................................................................................................. 121

9.4.3 Slope-offset curve........................................................................................................................................... 122

9.4.4 Using weather-dependent curves.................................................................................................................. 124

9.5 Settings menu ................................................................................................................................................................. 126

9.5.1 Malfunctioning ............................................................................................................................................... 126

9.5.2 Room............................................................................................................................................................... 126

9.5.3 Main zone ....................................................................................................................................................... 130

9.5.4 Additional zone ............................................................................................................................................... 141

9.5.5 Space heating/cooling .................................................................................................................................... 146

9.5.6 Tank................................................................................................................................................................. 154

9.5.7 User settings ................................................................................................................................................... 161

9.5.8 Information ..................................................................................................................................................... 165

9.5.9 Installer settings ............................................................................................................................................. 167

9.5.10 Commissioning ............................................................................................................................................... 185

9.5.11 Operation........................................................................................................................................................ 185

9.5.12 WLAN .............................................................................................................................................................. 186

9.6 Menu structure: Overview user settings........................................................................................................................ 188

9.7 Menu structure: Overview installer settings.................................................................................................................. 189

10 Commissioning 190

10.1 Overview: Commissioning .............................................................................................................................................. 190

10.2 Precautions when commissioning .................................................................................................................................. 191

10.3 Checklist before commissioning ..................................................................................................................................... 191

10.4 Checklist during commissioning ..................................................................................................................................... 192

10.4.1 Minimum flow rate......................................................................................................................................... 192

10.4.2 Air purge function........................................................................................................................................... 193

10.4.3 Operation test run.......................................................................................................................................... 196

10.4.4 Actuator test run ............................................................................................................................................ 197

10.4.5 Underfloor heating screed dryout ................................................................................................................. 197

11 Hand-over to the user 201

12 Maintenance and service 202

12.1 Overview: Maintenance and service .............................................................................................................................. 202

12.2 Maintenance safety precautions .................................................................................................................................... 202

12.3 Yearly maintenance ........................................................................................................................................................ 203

12.3.1 Yearly maintenance outdoor unit: overview ................................................................................................. 203

12.3.2 Yearly maintenance outdoor unit: instructions............................................................................................. 203

12.3.3 Yearly maintenance indoor unit: overview.................................................................................................... 203

12.3.4 Yearly maintenance indoor unit: instructions ............................................................................................... 203

12.4 To drain the domestic hot water tank............................................................................................................................ 206

12.5 About cleaning the water filter in case of trouble ......................................................................................................... 207

12.5.1 To remove the water filter ............................................................................................................................. 207

12.5.2 To clean the water filter in case of trouble.................................................................................................... 207

12.5.3 To install the water filter ................................................................................................................................ 209

13 Troubleshooting 210

13.1 Overview: Troubleshooting ............................................................................................................................................ 210

13.2 Precautions when troubleshooting ................................................................................................................................ 210

13.3 Solving problems based on symptoms ........................................................................................................................... 211

13.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 211

13.3.2 Symptom: Hot water does NOT reach the desired temperature.................................................................. 212

13.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 212

13.3.4 Symptom: The system is making gurgling noises after commissioning ........................................................ 212

13.3.5 Symptom: The pump is blocked..................................................................................................................... 213

13.3.6 Symptom: The pump is making noise (cavitation)......................................................................................... 213

13.3.7 Symptom: The pressure relief valve opens.................................................................................................... 214

13.3.8 Symptom: The water pressure relief valve leaks........................................................................................... 214

13.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 215

13.3.10 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 216

13.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 216

13.4 Solving problems based on error codes ......................................................................................................................... 216

13.4.1 To display the help text in case of a malfunction .......................................................................................... 217

13.4.2 Error codes: Overview.................................................................................................................................... 217

Installer reference guide

14 Disposal 222

14.1 To recover refrigerant..................................................................................................................................................... 222

15 Technical data 224

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

Table of contents

15.1 Service space: Outdoor unit ........................................................................................................................................... 225

15.2 Piping diagram: Outdoor unit ......................................................................................................................................... 226

15.3 Piping diagram: Indoor unit ............................................................................................................................................ 227

15.4 Wiring diagram: Outdoor unit ........................................................................................................................................ 229

15.5 Wiring diagram: Indoor unit ........................................................................................................................................... 234

16 Glossary 240

17 Field settings table 241

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

Installer reference guide

1 | General safety precautions

1 General safety precautions

In this chapter

1.1 About the documentation...................................................................................................................................................... 6

1.2 For the installer....................................................................................................................................................................... 7

1.1 About the documentation

▪ The original documentation is written in English. All other languages are

translations.

▪ The precautions described in this document cover very important topics, follow

them carefully.

1.1.1 Meaning of warnings and symbols ........................................................................................................................ 6

1.2.1 General ................................................................................................................................................................... 7

1.2.2 Installation site ....................................................................................................................................................... 8

1.2.3 Refrigerant — in case of R410A or R32 ................................................................................................................. 9

1.2.4 Water ...................................................................................................................................................................... 10

1.2.5 Electrical ................................................................................................................................................................. 11

▪ The installation of the system, and all activities described in the installation

manual and in the installer reference guide MUST be performed by an authorised installer.

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in death or serious injury.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in electrocution.

DANGER: RISK OF BURNING/SCALDING

Indicates a situation that could result in burning/scalding because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

Installer reference guide

WARNING

Indicates a situation that could result in death or serious injury.

WARNING: FLAMMABLE MATERIAL

CAUTION

Indicates a situation that could result in minor or moderate injury.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

NOTICE

Indicates a situation that could result in equipment or property damage.

INFORMATION

Indicates useful tips or additional information.

Symbols used on the unit:

Symbol Explanation

Before installation, read the installation and operation manual, and the wiring instruction sheet.

Before performing maintenance and service tasks, read the service manual.

For more information, see the installer and user reference guide.

The unit contains rotating parts. Be careful when servicing or inspecting the unit.

1 | General safety precautions

Symbols used in the documentation:

1.2 For the installer

1.2.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.

Symbol Explanation

Indicates a figure title or a reference to it.

Example: " 1–3 Figure title" means "Figure 3 in chapter 1".

Indicates a table title or a reference to it.

Example: " 1–3 Table title" means "Table 3 in chapter 1".

DANGER: RISK OF BURNING/SCALDING

▪ Do NOT touch the refrigerant piping, water piping or internal parts during and

immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you must touch it, wear protective gloves.

▪ Do NOT touch any accidental leaking refrigerant.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

WARNING

Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. Only use accessories, optional equipment and spare parts made or approved by Daikin.

WARNING

Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

Installer reference guide

1 | General safety precautions

CAUTION

Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.

WARNING

Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.

WARNING

Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

CAUTION

▪ Do NOT place any objects or equipment on top of the unit. ▪ Do NOT sit, climb or stand on the unit.

1.2.2 Installation site

NOTICE

Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress.

In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods,…

Also, at least, following information MUST be provided at an accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name, address and day and night telephone numbers for obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

▪ Provide sufficient space around the unit for servicing and air circulation.

▪ Make sure the installation site withstands the weight and vibration of the unit.

▪ Make sure the area is well ventilated. Do NOT block any ventilation openings.

▪ Make sure the unit is level.

Installer reference guide

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In places where there is machinery that emits electromagnetic waves.

Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.

▪ In places where there is a risk of fire due to the leakage of flammable gases

(example: thinner or gasoline), carbon fibre, ignitable dust.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

▪ In places where corrosive gas (example: sulphurous acid gas) is produced.

Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

1.2.3 Refrigerant — in case of R410A or R32

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard.

NOTICE

Make sure the field piping and connections are NOT subjected to stress.

WARNING

During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit).

1 | General safety precautions

WARNING

Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks:

▪ Excessive refrigerant concentrations in a closed room can lead to oxygen

deficiency.

▪ Toxic gas might be produced if refrigerant gas comes into contact with fire.

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump down the system, and there

is a leak in the refrigerant circuit:

▪ Do NOT use the unit's automatic pump down function, with which you can collect

all refrigerant from the system into the outdoor unit. Possible consequence: Selfcombustion and explosion of the compressor because of air going into the operating compressor.

▪ Use a separate recovery system so that the unit's compressor does NOT have to

operate.

WARNING

ALWAYS recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

NOTICE

After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection.

NOTICE

▪ To avoid compressor breakdown, do NOT charge more than the specified amount

of refrigerant.

▪ When the refrigerant system is to be opened, refrigerant MUST be treated

according to the applicable legislation.

Installer reference guide

1 | General safety precautions

▪ In case recharge is required, see the nameplate of the unit. It states the type of

refrigerant and necessary amount.

▪ The unit is factory charged with refrigerant and depending on pipe sizes and pipe

lengths some systems require additional charging of refrigerant.

▪ Only use tools exclusively for the refrigerant type used in the system, this to

ensure pressure resistance and prevent foreign materials from entering into the system.

▪ Charge the liquid refrigerant as follows:

WARNING

Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying.

Possible consequence: Self-combustion and explosion of the compressor because of oxygen going into the operating compressor.

If Then

A siphon tube is present

Charge with the cylinder upright.

(i.e., the cylinder is marked with "Liquid filling siphon attached")

A siphon tube is NOT present Charge with the cylinder upside down.

▪ Open refrigerant cylinders slowly.

▪ Charge the refrigerant in liquid form. Adding it in gas form may prevent normal

operation.

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant. Possible consequence: Incorrect refrigerant amount.

1.2.4 Water

Installer reference guide

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure water quality complies with EU directive 98/83EC.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

1.2.5 Electrical

1 | General safety precautions

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the switch box cover, connecting

electrical wiring or touching electrical parts.

▪ Disconnect the power supply for more than 10minutes, and measure the voltage

at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50VDC before you can touch electrical components. For the location of the terminals, see the wiring diagram.

▪ Do NOT touch electrical components with wet hands. ▪ Do NOT leave the unit unattended when the service cover is removed.

WARNING

If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage categoryIII condition, MUST be installed in the fixed wiring.

WARNING

▪ ONLY use copper wires. ▪ Make sure the field wiring complies with the applicable legislation. ▪ All field wiring MUST be performed in accordance with the wiring diagram

supplied with the product.

▪ NEVER squeeze bundled cables and make sure they do NOT come in contact with

the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.

▪ Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surge

absorber, or telephone earth. Incomplete earth may cause electrical shock.

▪ Make sure to use a dedicated power circuit. NEVER use a power supply shared by

another appliance.

▪ Make sure to install the required fuses or circuit breakers. ▪ Make sure to install an earth leakage protector. Failure to do so may cause

electrical shock or fire.

▪ When installing the earth leakage protector, make sure it is compatible with the

inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector.

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

CAUTION

▪ When connecting the power supply: connect the earth cable first, before making

the current-carrying connections.

▪ When disconnecting the power supply: disconnect the current-carrying cables

first, before separating the earth connection.

▪ The length of the conductors between the power supply stress relief and the

terminal block itself must be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.

Installer reference guide

1 | General safety precautions

Install power cables at least 1 m away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 m may not be sufficient.

NOTICE

Precautions when laying power wiring:

▪ Do NOT connect wiring of different thicknesses to the power terminal block (slack

in the power wiring may cause abnormal heat).

▪ When connecting wiring which is the same thickness, do as shown in the figure

above.

▪ For wiring, use the designated power wire and connect firmly, then secure to

prevent outside pressure being exerted on the terminal board.

▪ Use an appropriate screwdriver for tightening the terminal screws. A screwdriver

with a small head will damage the head and make proper tightening impossible.

▪ Over-tightening the terminal screws may break them.

WARNING

▪ After finishing the electrical work, confirm that each electrical component and

terminal inside the electrical components box is connected securely.

▪ Make sure all covers are closed before starting up the unit.

NOTICE

Only applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method.

If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts.

Installer reference guide

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1B – 2020.12

2 About the documentation

In this chapter

2.1 About this document.............................................................................................................................................................. 13

2.2 Installer reference guide at a glance...................................................................................................................................... 14

2.1 About this document

Target audience

Authorised installers

Documentation set

This document is part of a documentation set. The complete set consists of:

▪ General safety precautions:

- Safety instructions that you must read before installing

- Format: Paper (in the box of the indoor unit)

2 | About the documentation

▪ Operation manual:

- Quick guide for basic usage

- Format: Paper (in the box of the indoor unit)

▪ User reference guide:

- Detailed step-by-step instructions and background information for basic and

advanced usage

- Format: Digital files on http://www.daikineurope.com/support-and-manuals/

product-information/

▪ Installation manual – Outdoor unit:

- Installation instructions

- Format: Paper (in the box of the outdoor unit)

▪ Installation manual – Indoor unit:

- Installation instructions

- Format: Paper (in the box of the indoor unit)

▪ Installer reference guide:

- Preparation of the installation, good practices, reference data,…

- Format: Digital files on http://www.daikineurope.com/support-and-manuals/

product-information/

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W Daikin Altherma 3 H HT F 4P587503-1B – 2020.12

▪ Addendum book for optional equipment:

- Additional info about how to install optional equipment

- Format: Paper (in the box of the indoor unit) + Digital files on http://

www.daikineurope.com/support-and-manuals/product-information/

Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages are translations.

Installer reference guide

2 | About the documentation

Technical engineering data

▪ A subset of the latest technical data is available on the regional Daikin website

(publicly accessible).

▪ The full set of latest technical data is available on the Daikin Business Portal

(authentication required).

Online tools

In addition to the documentation set, some online tools are available for installers:

▪ Daikin Technical Data Hub

- Central hub for technical specifications of the unit, useful tools, digital

- Publicly accessible via https://daikintechnicaldatahub.eu.

▪ Heating Solutions Navigator

- Digital toolbox that offers a variety of tools to facilitate the installation and

- To access Heating Solutions Navigator, registration to the Stand By Me

resources, and more.

configuration of heating systems.

platform is required. For more information, see https://

professional.standbyme.daikin.eu.

▪ Daikin e-Care

- Mobile app for installers and service technicians that allows you to register,

configure and troubleshoot heating systems.

- The mobile app can be downloaded for iOS and Android devices using the QR

codes below. Registration to the Stand By Me platform is required to access the app.

App Store Google Play

2.2 Installer reference guide at a glance

Chapter Description

General safety precautions Safety instructions that you must read before

installing

About the documentation What documentation exists for the installer

About the box How to unpack the units and remove their

accessories

Installer reference guide

About the units and options ▪ How to identify the units

▪ Possible combinations of units and options

Application guidelines Various installation setups of the system

Unit installation What to do and know to install the system,

including information on how to prepare for an installation

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2 | About the documentation

Chapter Description

Piping installation What to do and know to install the piping of the

system, including information on how to prepare for an installation

Electrical installation What to do and know to install the electrical

components of the system, including information on how to prepare for an installation

Configuration What to do and know to configure the system

after it is installed

Commissioning What to do and know to commission the system

after it is configured

Hand‑over to the user What to give and explain to the user

Maintenance and service How to maintain and service the units

Troubleshooting What to do in case of problems

Disposal How to dispose of the system

Technical data Specifications of the system

Glossary Definition of terms

Field settings table Table to be filled in by the installer, and kept for

future reference

Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user.

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Installer reference guide

3 | About the box

3 About the box

In this chapter

3.1 Overview: About the box

3.1 Overview: About the box........................................................................................................................................................ 16

3.2 Outdoor unit ........................................................................................................................................................................... 16

3.2.1 To handle the outdoor unit.................................................................................................................................... 16

3.2.2 To unpack the outdoor unit ................................................................................................................................... 18

3.2.3 To remove the accessories from the outdoor unit ............................................................................................... 19

3.3 Indoor unit .............................................................................................................................................................................. 20

3.3.1 To unpack the indoor unit...................................................................................................................................... 20

3.3.2 To remove the accessories from the indoor unit .................................................................................................. 20

3.3.3 To handle the indoor unit ...................................................................................................................................... 20

This chapter describes what you have to do after the boxes with the outdoor and indoor unit are delivered on-site.

Keep the following in mind:

▪ At delivery, the unit MUST be checked for damage. Any damage MUST be

reported immediately to the claims agent of the carrier.

▪ Bring the packed unit as close as possible to its final installation position to

prevent damage during transport.

▪ Prepare the path along which you want to bring the unit inside in advance.

3.2 Outdoor unit

3.2.1 To handle the outdoor unit

CAUTION

To avoid injury, do NOT touch the air inlet or aluminium fins of the unit.

Crane

Keep the slings within the marked area to not damage the unit.

Installer reference guide

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3 | About the box

±150

4×

Forklift or pallet truck

Enter the pallet from the heavy side.

Manually

After unpacking, carry the unit using the slings attached to the unit.

3.2.2 To unpack the outdoor unit

Installer reference guide

a, b Accessories

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3.2.3 To remove the accessories from the outdoor unit

ENERG

IJAY

IAIE

ENERG

IJAY

IAIE

3 | About the box

a Shut-off valve (with integrated filter) b O-ring for drain socket

c Drain socket d Thermistor fixture (for installations in areas with low ambient temperatures) e Installation manual – Outdoor unit

f Disposal manual – Recovering refrigerant g Energy label h Discharge grille (upper + lower part)

i Installation manual – Discharge grille

NOTICE

Unpacking. When you remove the top packaging/accessories, hold the box

containing the discharge grille to prevent it from falling.

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Installer reference guide

3 | About the box

1 2

8×

6×

12×1×4× 1×

1× 1× 1× 1×

a b

g h ic d e f

a a

3.3 Indoor unit

3.3.1 To unpack the indoor unit

3.3.2 To remove the accessories from the indoor unit

a Shut-off valves for water circuit b Overpressure bypass valve

c General safety precautions d Addendum book for optional equipment e Indoor unit installation manual

f Operation manual g Sealing rings for shut-off valves (space heating water circuit) h Sealing rings for field-supplied shut-off valves (domestic hot water circuit)

i Sealing tape for low voltage wiring intake

3.3.3 To handle the indoor unit

Use the handles at the back and at the bottom to carry the unit.

Installer reference guide

a Handles at the back of the unit b Handles at the bottom of the unit. Carefully tilt the unit to the back so that the

handles become visible.

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4 About the units and options

In this chapter

4.1 Overview: About the units and options ................................................................................................................................. 21

4.2 Identification........................................................................................................................................................................... 21

4.2.1 Identification label: Outdoor unit .......................................................................................................................... 21

4.2.2 Identification label: Indoor unit ............................................................................................................................. 22

4.3 Combining units and options.................................................................................................................................................. 22

4.3.1 Possible combinations of indoor unit and outdoor unit ....................................................................................... 22

4.3.2 Possible options for the outdoor unit.................................................................................................................... 22

4.3.3 Possible options for the indoor unit ...................................................................................................................... 23

4.1 Overview: About the units and options

This chapter contains information about:

▪ Identifying the outdoor unit

▪ Identifying the indoor unit

▪ Combining the outdoor unit with options

4 | About the units and options

▪ Combining the indoor unit with options

4.2 Identification

NOTICE

When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models.

4.2.1 Identification label: Outdoor unit

Location

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Model identification

Example: EPRA14DAV3

Code Explanation

EP European hydro-split outdoor pair heat pump

R High water temperature – ambient zone 2 (see operation

range)

A Refrigerant R32

Installer reference guide

4 | About the units and options

14 Capacity class

DA Model series

V3 Power supply

4.2.2 Identification label: Indoor unit

Location

Model identification

Example: ETVZ16S18DA6V

E European model

Code Explanation

Code Description

TV Floor-standing hydro-split unit with integrated tank

Z Dual-zone model

16 Capacity class

S Integrated tank material: Stainless steel

18 Integrated tank volume

DA Model series

6V Backup heater model

4.3 Combining units and options

INFORMATION

Certain options might not be available in your country.

4.3.1 Possible combinations of indoor unit and outdoor unit

Indoor unit Outdoor unit

EPRA14 EPRA16 EPRA18

4.3.2 Possible options for the outdoor unit

Installer reference guide

ETVZ16 O O O

Mounting stand (EKMST1, EKMST2)

In colder regions where heavy snowfall can occur, it is recommended to install the outdoor unit on a mounting frame. Use one of the following models:

▪ EKMST1 with flange feet: to install the outdoor unit on a concrete foundation

where drilling is allowed.

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▪ EKMST2 with rubber feet: to install the outdoor unit on foundations where

drilling is not allowed or possible, such as flat roofs or pavements.

For installation instructions, see the installation manual of the mounting stand.

4.3.3 Possible options for the indoor unit

Multi-zoning wired controls

You can connect the following multi-zoning wired controls:

▪ Multi-zoning base unit 230V (EKWUFHTA1V3)

▪ Digital thermostat 230V (EKWCTRDI1V3)

▪ Analogue thermostat 230V (EKWCTRAN1V3)

▪ Actuator 230V (EKWCVATR1V3)

For installation instructions, see the installation manual of the control, and the addendum book for optional equipment.

Wireless room thermostat (EKRTR1)

You can connect an optional wireless room thermostat to the indoor unit.

For installation instructions, see the installation manual of the room thermostat and addendum book for optional equipment.

4 | About the units and options

Remote sensor for wireless thermostat (EKRTETS)

You can use the remote indoor temperature sensor (EKRTETS) only in combination with the wireless thermostat (EKRTR1).

For installation instructions, see the installation manual of the room thermostat and the addendum book for optional equipment.

Digital I/O PCB (EKRP1HBAA)

The digital I/O PCB is required to provide following signals:

▪ Alarm output

▪ Space heating/cooling On/OFF output

▪ Changeover to external heat source

For installation instructions, see the installation manual of the digital I/O PCB and addendum book for optional equipment.

Demand PCB (EKRP1AHTA)

To enable the power saving consumption control by digital inputs you must install the demand PCB.

For installation instructions, see the installation manual of the demand PCB and addendum book for optional equipment.

Remote indoor sensor (KRCS01-1)

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By default the internal sensor of the dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) will be used as room temperature sensor.

As an option the remote indoor sensor can be installed to measure the room temperature on another location.

For installation instructions, see the installation manual of the remote indoor sensor and addendum book for optional equipment.

Installer reference guide

4 | About the units and options

Remote outdoor sensor (EKRSCA1)

By default the sensor inside the outdoor unit will be used to measure the outdoor temperature.

As an option the remote outdoor sensor can be installed to measure the outdoor temperature on another location (e.g. to avoid direct sunlight) to have an improved system behaviour.

For installation instructions, see the installation manual of the remote outdoor sensor and the addendum book for optional equipment.

PC cable (EKPCCAB4)

INFORMATION

▪ The remote indoor sensor can only be used in case the user interface is

configured with room thermostat functionality.

▪ You can only connect either the remote indoor sensor or the remote outdoor

sensor.

INFORMATION

You can only connect either the remote indoor sensor or the remote outdoor sensor.

The PC cable makes a connection between the switch box of the indoor unit and a PC. It gives the possibility to update the software of the indoor unit.

For installation instructions, see the installation manual of the PC cable.

Heat pump convector (FWXV, FWXT, FWXM)

For providing space heating/cooling, it is possible to use the following heat pump convectors:

▪ FWXV: floor-standing model

▪ FWXT: wall-mounted model

▪ FWXM: concealed model

For installation instructions, see:

▪ The installation manual of the heat pump convectors

▪ The installation manual of the heat pump convector options

▪ The addendum book for optional equipment

LAN adapter for smartphone control + Smart Grid applications (BRP069A61)

You can install this LAN adapter to:

▪ Control the system via a smartphone app.

▪ Use the system in various Smart Grid applications.

Installer reference guide

For installation instructions, see the installation manual of the LAN adapter and the addendum book for optional equipment.

LAN adapter for smartphone control (BRP069A62)

You can install this LAN adapter to control the system via a smartphone app.

For installation instructions, see the installation manual of the LAN adapter and the addendum book for optional equipment.

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4 | About the units and options

WLAN adapter (BRP069A71)

You can install the wireless LAN adapter to control the system via a smartphone app.

For installation instructions, see the installation manual of the WLAN adapter and the addendum book for optional equipment.

Universal centralised controller (EKCC8-W)

Controller for cascade control.

Conversion kit (EKHVCONV2)

Use the connection kit to convert a heating only model to a reversible model.

For installation instructions, see the installation manual of the conversion kit.

Human Comfort Interface (BRC1HHDA) used as room thermostat

▪ The Human Comfort Interface (HCI) used as room thermostat can only be used in

combination with the user interface connected to the indoor unit.

▪ The Human Comfort Interface (HCI) used as room thermostat needs to be

installed in the room that you want to control.

For installation instructions, see the installation and operation manual of the Human Comfort Interface (HCI) as room thermostat.

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Installer reference guide

5 | Application guidelines

5 Application guidelines

In this chapter

INFORMATION

Cooling is only applicable in case a conversion kit (EKHVCONV2) is installed.

5.1 Overview: Application guidelines........................................................................................................................................... 26

5.2 Setting up the space heating/cooling system ........................................................................................................................ 27

5.2.1 Multiple rooms – TwoLWT zones ......................................................................................................................... 28

5.3 Setting up the domestic hot water tank ................................................................................................................................ 30

5.3.1 System layout – Integrated DHW tank .................................................................................................................. 30

5.3.2 Selecting the volume and desired temperature for the DHW tank ...................................................................... 30

5.3.3 Setup and configuration – DHW tank .................................................................................................................... 32

5.3.4 DHW pump for instant hot water .......................................................................................................................... 32

5.3.5 DHW pump for disinfection ................................................................................................................................... 33

5.4 Setting up the energy metering ............................................................................................................................................. 34

5.4.1 Produced heat ........................................................................................................................................................ 34

5.4.2 Consumed energy .................................................................................................................................................. 34

5.4.3 Normal kWh rate power supply............................................................................................................................. 35

5.4.4 Preferential kWh rate power supply...................................................................................................................... 36

5.5 Setting up the power consumption control........................................................................................................................... 37

5.5.1 Permanent power limitation.................................................................................................................................. 38

5.5.2 Power limitation activated by digital inputs .......................................................................................................... 38

5.5.3 Power limitation process ....................................................................................................................................... 40

5.5.4 BBR16 power limitation ......................................................................................................................................... 40

5.6 Setting up an external temperature sensor........................................................................................................................... 41

5.1 Overview: Application guidelines

The purpose of the application guidelines is to give a glance of the possibilities of the heatpump system.

NOTICE

▪ The illustrations in the application guidelines are meant for reference only, and

are NOT to be used as detailed hydraulic diagrams. The detailed hydraulic dimensioning and balancing are NOT shown, and are the responsibility of the installer.

▪ For more information about the configuration settings to optimize heat pump

operation, see "9Configuration"[4106].

This chapter contains application guidelines for:

▪ Setting up the space heating/cooling system

▪ Setting up the domestic hot water tank

▪ Setting up the energy metering

▪ Setting up the power consumption control

▪ Setting up an external temperature sensor

Installer reference guide

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NOTICE

Certain types of fan coil units –in this document referred to as "heat pump convectors"–, are able to receive input of the indoor unit operation mode (cooling or heating X2M/3 and X2M/4) and/or to send output of the heat pump convector thermostatic condition (main zone: X2M/30 and X2M/35; additional zone: X2M/30 and X2M/35a).

The application guidelines illustrate the possibility of receiving or sending digital input/output. This functionality can only be used in case the heat pump convector has such features and the signals meet following requirements:

▪ Output of indoor unit (input to heat pump convector): cooling/heating

signal=230V (cooling=230V, heating=0V).

▪ Input to indoor unit (output of heat pump convector): thermostat ON/OFF

signal=voltage-free contact (closed contact=thermo ON, open contact=thermo OFF).

5.2 Setting up the space heating/cooling system

The heat pump system supplies leaving water to heat emitters in one or more rooms.

5 | Application guidelines

Because the system offers a wide flexibility to control the temperature in each room, you need to answer the following questions first:

▪ How many rooms are heated or cooled by the heatpump system?

▪ Which heat emitter types are used in each room and what is their design leaving

water temperature?

Once the space heating/cooling requirements are clear, we recommend to follow the setup guidelines below.

NOTICE

If an external room thermostat is used, the external room thermostat will control the room frost protection. However, the room frost protection is only possible if [C.2] Space heating/cooling=On.

INFORMATION

In case an external room thermostat is used and room frost protection needs to be guaranteed in all conditions, then you have to set Emergency [9.5.1] to Automatic.

NOTICE

An overpressure bypass valve can be integrated in the system. Keep in mind that this valve might not be shown on the illustrations.

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Installer reference guide

5 | Application guidelines

5.2.1 Multiple rooms – TwoLWT zones

NOTICE

If you install this unit as a single-zone application, then:

Setup. Install a bypass between the space heating water inlet and outlet of the additional zone (=direct zone). Do NOT interrupt the water flow by closing the shutoff valves.

a Bypass

Configuration. Set field setting [7-02]=0 (Number of zones = Single zone).

This unit is designed to deliver water at 2 different temperatures. A typical installation consists of underfloor heating at a lower temperature and radiators at a higher water temperature.

In this document:

▪ Main zone = Zone with the lowest design temperature in heating, and the highest

design temperature in cooling

▪ Additional zone = Zone with the highest design temperature in heating, and the

lowest design temperature in cooling

Typical example:

Room (zone) Heat emitters: Design temperature

Living room (main zone) Underfloor heating:

▪ In heating: 35°C

▪ In cooling: 20°C (only refreshment, no

real cooling allowed)

Bed rooms (additional zone) Heatpump convectors:

▪ In heating: 45°C

▪ In cooling: 12°C

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5 | Application guidelines

Setup

A Additional leaving water temperature zone B Room 1

C Room 2

D Main leaving water temperature zone

E Room 3 a Heatpump convectors (+ controllers)

b Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat)

▪ For the main zone: the room temperature is controlled by the dedicated Human

Comfort Interface (BRC1HHDA used as room thermostat).

▪ For the additional zone:

- The external thermostat is directly connected to the indoor unit.

- The desired room temperature is set via the external thermostat and the

thermostatic valves of the radiators in each room.

- The heating demand signal from the external thermostat is connected to the

digital input on the indoor unit (X2M/35a and X2M/30). The indoor unit will only supply the desired additional leaving water temperature when there is an actual demand.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

2 (Room thermostat): Unit operation is decided based on the ambient temperature of the dedicated Human

▪ Code: [C-07]

Comfort Interface.

Note:

▪ Main room = dedicated Human

Comfort Interface used as room thermostat functionality

▪ Other rooms = external room

Number of water temperature zones:

thermostat functionality

1 (Dual zone): Main + additional

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▪ #: [4.4]

▪ Code: [7-02]

Installer reference guide

5 | Application guidelines

Setting Value

In case of heatpump convectors:

External room thermostat for the additional zone:

1 (1 contact): When the used external room thermostat or heatpump convector can only send a thermo ON/ OFF condition. No separation between

▪ #: [3.A]

heating or cooling demand.

▪ Code: [C-06]

Shut-off valve output Set to follow the thermo demand of the

main zone.

Benefits

▪ Comfort.

- The smart room thermostat functionality can decrease or increase the desired

leaving water temperature based on the actual room temperature (modulation).

- The combination of the two heat emitter systems provides the excellent

heating comfort of the underfloor heating, and the excellent cooling comfort of the heatpump convectors.

▪ Efficiency.

- Depending on the demand, the indoor unit supplies different leaving water

temperature matching the design temperature of the different heat emitters.

- Underfloor heating has the best performance with the heat pump system.

5.3 Setting up the domestic hot water tank

5.3.1 System layout – Integrated DHW tank

A Domestic hot water

a Cold water IN

b Hot water OUT

Installer reference guide

5.3.2 Selecting the volume and desired temperature for the DHW tank

People experience water as hot when its temperature is 40°C. Therefore, the DHW consumption is always expressed as equivalent hot water volume at 40°C. However, you can set the DHW tank temperature at a higher temperature (example: 53°C), which is then mixed with cold water (example: 15°C).

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